Properties of the Number 87868

Eighty-Seven Thousand Eight Hundred Sixty-Eight

Basics

Value: 87867 → 87868 → 87869

Parity: even

Prime: No

Previous Prime: 87853

Next Prime: 87869

Digit Sum: 37

Digital Root: 1

Palindrome: No

Factorization: 2 ² × 11 × 1997

Divisors: 1, 2, 4, 11, 22, 44, 1997, 3994, 7988, 21967

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10101011100111100

Octal: 253474

Duodecimal: 42A24

Hexadecimal: 1573c

Square: 7720785424

Square Root: 296.4253700343478

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

a(n) = 2662·n + 22. A157613

Indices of records in A363345. A364239

Starting from a(1)=2, a(n) = A028260(1+a(n-1)) if n is even, a(n) = A026424(a(n-1)) if n is odd. A160966

a[n] =Abs[Abs[Prime[n]-a[n-1]]+Abs[Prime[n]-a[n-2]]+Abs[Prime[n]-a[n-3]]-Abs[Prime[n]-a[n-4]]]. A87868